RME2-AI-IA3 Analog Variables Acquisition Module – User’s Manual
Exemys
www.exemys.com
Rev. 1
17
Modbus Silence Time(Applies only for Modbus RTU): Modbus/RTU packets are separated
from each other by a time interval. This parameter allows to change the maximum time,
counting after receiving the last byte of the packet, during which the RME2-AI-IA3 will
assume that the packet has not finished yet. After this maximum time, the RME2-AI-IA3 will
assume that the packet has finished arriving. The time is entered in units of the time of one
byte, being the minimum of 3 units.
Message response time: It is the maximum time in which device waits for the answer to the
query sent to the output interface.
Internal Memory Modbus ID: It is the Modbus ID used to read the device inputs in case it
enables the serial port. If you do not use the serial port, you can read the RME2-AI-IA3 inputs
with any Modbus ID.
Inactivity time (Modbus TCP): If a TCP connection gets an inactivity time without sending or
receiving data, the connection will automatically close.
If set to 0, the connection will not close due to inactivity, that means the option is disabled.
Exceptions: Enables the RME2-AI-IA3 to respond or not to exceptions to errors in Modbus
TCP to Modbus Serial communication. If the option is disabled, the RME2-AI-IA3 will remain
silent in case of errors. Otherwise, it will return an exception code detailed below:
0x0A - Path not available:
- The message has a device address (ID) that is not configured in the startand end IDs
established in the Port.
0x0B - Remote device does not respond
- Parity error.
- CRC/LRC error.
- Frame error.
- it did not receive a response within the maximum message waiting time (Message
Response Time).
